7-matter and energy

1. Which one is not made of matter?
a. Tree
b. Air
c. Thoughts
d. Water

2. Choose the correct answer:
a. Mass is the amount of energy in an object.
b. Mass is always related to the size of the object.
c. We use a metre to measure mass.
d. Mass is measured in kilograms and grams.

3. Which properties of matter have all objects?
a. Mass and colour.
b. Hardness and transparency.
c. Mass and volume.
d. Volume and transparency.


4. In which states can mass exist?

1. Evaporation, condensation, solidification
2. Solid, liquid, gas and plasma
3. Liquid, Melting, and evaporation
4. Gas, liquid, and melting

5. Are specific properties different for each type of matter?

1. Yes, always
2. No, are common to all matter
3. Sometimes
4. Yes, only with volume object

6. Which of these are specific properties of matter?

1. Mass and density
2. Mass, volume and density
3. Colour, hardness, flexibility and density
4. Flexibility and mass

7. Which is the correct answer?

1. There is more matter in a pencil than in a table.
2. A table has more mass than a pencil
3. Mass is always related to the size of the object.
4. A pineapple can´t have more mass than a pillow.

8. How can you measure mass? repeated

1. Kilograms and grams
2. Tons and cubic metres
3. Metres and litres
4. Kilograms and metres

9. What is volume?

1. All that you can measure
2. The amount of mass that you can find in the air
3. The amount of space that an object occupies
4. All the things that are liquid

10. Choose the correct answer

1. 1 L = 1000 dl
2. 1000 ml = 10000 cl
3. 1 cm3 = 1dl
4. 1 cm3 = 1ml

11. What can you use the water displacement method for? The alternatives are not possible, shape and liquid do not fit

1. To calculate the volume of regular shaped gas.
2. To calculate the volume of regular and irregular shaped solids.
3. To calculate the volume of regular shaped of liquid.
4. To calculate the volume of irregular shaped of liquid.

12. How can you calculate the density of an object?

1. By dividing its mass by its volume
2. By dividing its volume by its mass
3. By measuring it
4. By multiply its mass and its volume

13. Can objects of the same size have different densities?

1. No, never
2. Yes, but only liquid
3. Yes
4. Depends on the properties

14. Depending on their density objects…

1. Always sink when placed in a liquid
2. Always float when placed in a liquid
3. Can sink or float when placed in a liquid
4. Never sink when placed in a liquid

15. Which properties are specific in solid objects?

1. Elastic, viscous, flexible, and volatile
2. Elastic, fragile, viscous, and volatile
3. Strong, volatile, flexible, and elastic
4. Strong, flexible, elastic, and fragile

16. If you compress a syringe that contains air…

1. The volume decreases, but the mass is the same
2. The volume increases, but the mass is the same
3. The mass decreases, but the volume is the same
4. The mass increases, but the volume is the same

17. What are ‘sublimation’ and ‘reverse sublimation’?

1. State of matter
2. Changes of state
3. Properties of matter
4. Chemical reactions

18. How many substances can matter contain?

1. Only one
2. Several
3. One or more substances
4. Nothing

19. During a _, a substance changes into a completely new one

1. Physical change
2. Chemical change
3. Colour change
4. Experiment

20. The method of separation of mixtures that is used to separate solids from liquids in heterogeneous mixtures is called..

1. Evaporation
2. Decantation
3. Distillation
4. Filtration